Help to archive the internet by running a virtual machine and donating some of your bandwidth!
I have yet to try this out but I'm glad they have something in place, though perhaps something based off of the @home/boinc software would be better.
Edit: Updated with a better link, previously linked to the wiki
Edit2: I was mistaken in thinking this was related to Archive.org, it is not -- but the data can be uploaded there too.